diff --git a/MAINTAINERS b/MAINTAINERS
index fb28a4e..8409cd1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19,7 +19,7 @@
   ffmpeg.c                              Michael Niedermayer
 
 ffplay:
-  ffplay.c                              Michael Niedermayer
+  ffplay.c                              Marton Balint
 
 ffprobe:
   ffprobe.c                             Stefano Sabatini
diff --git a/configure b/configure
index 576daf0..822c500 100755
--- a/configure
+++ b/configure
@@ -2203,7 +2203,7 @@
         arch="sparc"
         subarch="sparc64"
     ;;
-    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
+    i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
         arch="x86"
     ;;
 esac
@@ -3164,7 +3164,7 @@
 
 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
 
-if test $target_os == "haiku"; then
+if test $target_os = "haiku"; then
     disable memalign
     disable posix_memalign
 fi
diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c
index 7344f4c..3f8061f 100644
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@@ -279,7 +279,7 @@
     }
 #endif
 
-static inline void mcdc(uint16_t *dst, uint16_t *src, int log2w, int h, int stride, int scale, int dc){
+static inline void mcdc(uint16_t *dst, uint16_t *src, int log2w, int h, int stride, int scale, unsigned dc){
    int i;
    dc*= 0x10001;
 
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index 6cc0cec..e9f2cc5 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -1090,7 +1090,7 @@
                             GET_VLC(code, re, gb, vlc_tab, 8, 2);
                             cb_idx = cb_vector_idx[code];
                             nnz = cb_idx >> 8 & 15;
-                            bits = SHOW_UBITS(re, gb, nnz) << (32-nnz);
+                            bits = nnz ? GET_CACHE(re, gb) : 0;
                             LAST_SKIP_BITS(re, gb, nnz);
                             cf = VMUL4S(cf, vq, cb_idx, bits, sf + idx);
                         } while (len -= 4);
@@ -1130,7 +1130,7 @@
                             GET_VLC(code, re, gb, vlc_tab, 8, 2);
                             cb_idx = cb_vector_idx[code];
                             nnz = cb_idx >> 8 & 15;
-                            sign = SHOW_UBITS(re, gb, nnz) << (cb_idx >> 12);
+                            sign = nnz ? SHOW_UBITS(re, gb, nnz) << (cb_idx >> 12) : 0;
                             LAST_SKIP_BITS(re, gb, nnz);
                             cf = VMUL2S(cf, vq, cb_idx, sign, sf + idx);
                         } while (len -= 2);
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c
index f036c4a..4d8a940 100644
--- a/libavcodec/apedec.c
+++ b/libavcodec/apedec.c
@@ -163,6 +163,18 @@
 
 // TODO: dsputilize
 
+static av_cold int ape_decode_close(AVCodecContext * avctx)
+{
+    APEContext *s = avctx->priv_data;
+    int i;
+
+    for (i = 0; i < APE_FILTER_LEVELS; i++)
+        av_freep(&s->filterbuf[i]);
+
+    av_freep(&s->data);
+    return 0;
+}
+
 static av_cold int ape_decode_init(AVCodecContext * avctx)
 {
     APEContext *s = avctx->priv_data;
@@ -195,25 +207,18 @@
     for (i = 0; i < APE_FILTER_LEVELS; i++) {
         if (!ape_filter_orders[s->fset][i])
             break;
-        s->filterbuf[i] = av_malloc((ape_filter_orders[s->fset][i] * 3 + HISTORY_SIZE) * 4);
+        FF_ALLOC_OR_GOTO(avctx, s->filterbuf[i],
+                         (ape_filter_orders[s->fset][i] * 3 + HISTORY_SIZE) * 4,
+                         filter_alloc_fail);
     }
 
     dsputil_init(&s->dsp, avctx);
     avctx->sample_fmt = AV_SAMPLE_FMT_S16;
     avctx->channel_layout = (avctx->channels==2) ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;
     return 0;
-}
-
-static av_cold int ape_decode_close(AVCodecContext * avctx)
-{
-    APEContext *s = avctx->priv_data;
-    int i;
-
-    for (i = 0; i < APE_FILTER_LEVELS; i++)
-        av_freep(&s->filterbuf[i]);
-
-    av_freep(&s->data);
-    return 0;
+filter_alloc_fail:
+    ape_decode_close(avctx);
+    return AVERROR(ENOMEM);
 }
 
 /**
@@ -797,7 +802,7 @@
     int buf_size = avpkt->size;
     APEContext *s = avctx->priv_data;
     int16_t *samples = data;
-    int nblocks;
+    uint32_t nblocks;
     int i, n;
     int blockstodecode;
     int bytes_used;
@@ -814,12 +819,15 @@
     }
 
     if(!s->samples){
-        s->data = av_realloc(s->data, (buf_size + 3) & ~3);
+        void *tmp_data = av_realloc(s->data, (buf_size + 3) & ~3);
+        if (!tmp_data)
+            return AVERROR(ENOMEM);
+        s->data = tmp_data;
         s->dsp.bswap_buf((uint32_t*)s->data, (const uint32_t*)buf, buf_size >> 2);
         s->ptr = s->last_ptr = s->data;
         s->data_end = s->data + buf_size;
 
-        nblocks = s->samples = bytestream_get_be32(&s->ptr);
+        nblocks = bytestream_get_be32(&s->ptr);
         n =  bytestream_get_be32(&s->ptr);
         if(n < 0 || n > 3){
             av_log(avctx, AV_LOG_ERROR, "Incorrect offset passed\n");
@@ -828,12 +836,13 @@
         }
         s->ptr += n;
 
-        s->currentframeblocks = nblocks;
         buf += 4;
-        if (s->samples <= 0) {
+        if (!nblocks || nblocks > INT_MAX) {
+            av_log(avctx, AV_LOG_ERROR, "Invalid sample count: %u.\n", nblocks);
             *data_size = 0;
-            return buf_size;
+            return AVERROR_INVALIDDATA;
         }
+        s->currentframeblocks = s->samples = nblocks;
 
         memset(s->decoded0,  0, sizeof(s->decoded0));
         memset(s->decoded1,  0, sizeof(s->decoded1));
diff --git a/libavcodec/atrac1.c b/libavcodec/atrac1.c
index 1f4c36c..6897790 100644
--- a/libavcodec/atrac1.c
+++ b/libavcodec/atrac1.c
@@ -276,7 +276,7 @@
     const uint8_t *buf = avpkt->data;
     int buf_size       = avpkt->size;
     AT1Ctx *q          = avctx->priv_data;
-    int ch, ret, i;
+    int ch, ret, i, out_size;
     GetBitContext gb;
     float* samples = data;
 
@@ -286,6 +286,13 @@
         return -1;
     }
 
+    out_size = q->channels * AT1_SU_SAMPLES *
+               av_get_bytes_per_sample(avctx->sample_fmt);
+    if (*data_size < out_size) {
+        av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
+        return AVERROR(EINVAL);
+    }
+
     for (ch = 0; ch < q->channels; ch++) {
         AT1SUCtx* su = &q->SUs[ch];
 
@@ -318,7 +325,7 @@
         }
     }
 
-    *data_size = q->channels * AT1_SU_SAMPLES * sizeof(*samples);
+    *data_size = out_size;
     return avctx->block_align;
 }
 
@@ -329,6 +336,11 @@
 
     avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
 
+    if (avctx->channels < 1 || avctx->channels > AT1_MAX_CHANNELS) {
+        av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %d\n",
+               avctx->channels);
+        return AVERROR(EINVAL);
+    }
     q->channels = avctx->channels;
 
     /* Init the mdct transforms */
diff --git a/libavcodec/binkaudio.c b/libavcodec/binkaudio.c
index ff36458..3b65a19 100644
--- a/libavcodec/binkaudio.c
+++ b/libavcodec/binkaudio.c
@@ -153,11 +153,18 @@
     2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 32, 64
 };
 
+#define GET_BITS_SAFE(out, nbits) do {  \
+    if (get_bits_left(gb) < nbits)      \
+        return AVERROR_INVALIDDATA;     \
+    out = get_bits(gb, nbits);          \
+} while (0)
+
 /**
  * Decode Bink Audio block
  * @param[out] out Output buffer (must contain s->block_size elements)
+ * @return 0 on success, negative error code on failure
  */
-static void decode_block(BinkAudioContext *s, short *out, int use_dct)
+static int decode_block(BinkAudioContext *s, short *out, int use_dct)
 {
     int ch, i, j, k;
     float q, quant[25];
@@ -170,13 +177,19 @@
     for (ch = 0; ch < s->channels; ch++) {
         FFTSample *coeffs = s->coeffs_ptr[ch];
         if (s->version_b) {
+            if (get_bits_left(gb) < 64)
+                return AVERROR_INVALIDDATA;
             coeffs[0] = av_int2flt(get_bits(gb, 32)) * s->root;
             coeffs[1] = av_int2flt(get_bits(gb, 32)) * s->root;
         } else {
+            if (get_bits_left(gb) < 58)
+                return AVERROR_INVALIDDATA;
             coeffs[0] = get_float(gb) * s->root;
             coeffs[1] = get_float(gb) * s->root;
         }
 
+        if (get_bits_left(gb) < s->num_bands * 8)
+            return AVERROR_INVALIDDATA;
         for (i = 0; i < s->num_bands; i++) {
             /* constant is result of 0.066399999/log10(M_E) */
             int value = get_bits(gb, 8);
@@ -191,15 +204,20 @@
         while (i < s->frame_len) {
             if (s->version_b) {
                 j = i + 16;
-            } else if (get_bits1(gb)) {
-                j = i + rle_length_tab[get_bits(gb, 4)] * 8;
             } else {
-                j = i + 8;
+                int v;
+                GET_BITS_SAFE(v, 1);
+                if (v) {
+                    GET_BITS_SAFE(v, 4);
+                    j = i + rle_length_tab[v] * 8;
+                } else {
+                    j = i + 8;
+                }
             }
 
             j = FFMIN(j, s->frame_len);
 
-            width = get_bits(gb, 4);
+            GET_BITS_SAFE(width, 4);
             if (width == 0) {
                 memset(coeffs + i, 0, (j - i) * sizeof(*coeffs));
                 i = j;
@@ -209,9 +227,11 @@
                 while (i < j) {
                     if (s->bands[k] == i)
                         q = quant[k++];
-                    coeff = get_bits(gb, width);
+                    GET_BITS_SAFE(coeff, width);
                     if (coeff) {
-                        if (get_bits1(gb))
+                        int v;
+                        GET_BITS_SAFE(v, 1);
+                        if (v)
                             coeffs[i] = -q * coeff;
                         else
                             coeffs[i] =  q * coeff;
@@ -247,6 +267,8 @@
            s->overlap_len * s->channels * sizeof(*out));
 
     s->first = 0;
+
+    return 0;
 }
 
 static av_cold int decode_end(AVCodecContext *avctx)
@@ -278,12 +300,17 @@
     int reported_size;
     GetBitContext *gb = &s->gb;
 
+    if (buf_size < 4) {
+        av_log(avctx, AV_LOG_ERROR, "Packet is too small\n");
+        return AVERROR_INVALIDDATA;
+    }
+
     init_get_bits(gb, buf, buf_size * 8);
 
     reported_size = get_bits_long(gb, 32);
-    while (get_bits_count(gb) / 8 < buf_size &&
-           samples + s->block_size <= samples_end) {
-        decode_block(s, samples, avctx->codec->id == CODEC_ID_BINKAUDIO_DCT);
+    while (samples + s->block_size <= samples_end) {
+        if (decode_block(s, samples, avctx->codec->id == CODEC_ID_BINKAUDIO_DCT))
+            break;
         samples += s->block_size;
         get_bits_align32(gb);
     }
diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index 69df8f4..24153eb 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -905,7 +905,8 @@
     for (subindex = 0; subindex < 8; subindex++) {
         /* Load in one sample from each subband and clear inactive subbands */
         for (i = 0; i < sb_act; i++){
-            uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ ((i-1)&2)<<30;
+            unsigned sign = (i - 1) & 2;
+            uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30;
             AV_WN32A(&s->raXin[i], v);
         }
 
diff --git a/libavcodec/dsicinav.c b/libavcodec/dsicinav.c
index faca821..d4dbb35 100644
--- a/libavcodec/dsicinav.c
+++ b/libavcodec/dsicinav.c
@@ -310,6 +310,11 @@
     CinAudioContext *cin = avctx->priv_data;
 
     cin->avctx = avctx;
+    if (avctx->channels != 1) {
+        av_log_ask_for_sample(avctx, "Number of channels is not supported\n");
+        return AVERROR_PATCHWELCOME;
+    }
+
     cin->initial_decode_frame = 1;
     cin->delta = 0;
     avctx->sample_fmt = AV_SAMPLE_FMT_S16;
diff --git a/libavcodec/dvdata.c b/libavcodec/dvdata.c
index 05993d8..db6ed2b87 100644
--- a/libavcodec/dvdata.c
+++ b/libavcodec/dvdata.c
@@ -248,11 +248,13 @@
 const DVprofile* ff_dv_frame_profile(const DVprofile *sys,
                                   const uint8_t* frame, unsigned buf_size)
 {
-   int i;
+   int i, dsf, stype;
 
-   int dsf = (frame[3] & 0x80) >> 7;
+   if(buf_size < DV_PROFILE_BYTES)
+       return NULL;
 
-   int stype = frame[80*5 + 48 + 3] & 0x1f;
+   dsf = (frame[3] & 0x80) >> 7;
+   stype = frame[80*5 + 48 + 3] & 0x1f;
 
    /* 576i50 25Mbps 4:1:1 is a special case */
    if (dsf == 1 && stype == 0 && frame[4] & 0x07 /* the APT field */) {
diff --git a/libavcodec/eamad.c b/libavcodec/eamad.c
index d4881ab..602bbfc 100644
--- a/libavcodec/eamad.c
+++ b/libavcodec/eamad.c
@@ -85,15 +85,21 @@
 {
     MpegEncContext *s = &t->s;
     if (j < 4) {
+        unsigned offset = (mb_y*16 + ((j&2)<<2) + mv_y)*t->last_frame.linesize[0] + mb_x*16 + ((j&1)<<3) + mv_x;
+        if (offset >= (s->height - 7) * t->last_frame.linesize[0] - 7)
+            return;
         comp(t->frame.data[0] + (mb_y*16 + ((j&2)<<2))*t->frame.linesize[0] + mb_x*16 + ((j&1)<<3),
              t->frame.linesize[0],
-             t->last_frame.data[0] + (mb_y*16 + ((j&2)<<2) + mv_y)*t->last_frame.linesize[0] + mb_x*16 + ((j&1)<<3) + mv_x,
+             t->last_frame.data[0] + offset,
              t->last_frame.linesize[0], add);
     } else if (!(s->avctx->flags & CODEC_FLAG_GRAY)) {
         int index = j - 3;
+        unsigned offset = (mb_y * 8 + (mv_y/2))*t->last_frame.linesize[index] + mb_x * 8 + (mv_x/2);
+        if (offset >= (s->height/2 - 7) * t->last_frame.linesize[index] - 7)
+            return;
         comp(t->frame.data[index] + (mb_y*8)*t->frame.linesize[index] + mb_x * 8,
              t->frame.linesize[index],
-             t->last_frame.data[index] + (mb_y * 8 + (mv_y/2))*t->last_frame.linesize[index] + mb_x * 8 + (mv_x/2),
+             t->last_frame.data[index] + offset,
              t->last_frame.linesize[index], add);
     }
 }
@@ -205,7 +211,8 @@
     for (j=0; j<6; j++) {
         if (mv_map & (1<<j)) {  // mv_x and mv_y are guarded by mv_map
             int add = 2*decode_motion(&s->gb);
-            comp_block(t, s->mb_x, s->mb_y, j, mv_x, mv_y, add);
+            if (t->last_frame.data[0])
+                comp_block(t, s->mb_x, s->mb_y, j, mv_x, mv_y, add);
         } else {
             s->dsp.clear_block(t->block);
             decode_block_intra(t, t->block);
@@ -266,6 +273,8 @@
         avcodec_set_dimensions(avctx, s->width, s->height);
         if (t->frame.data[0])
             avctx->release_buffer(avctx, &t->frame);
+        if (t->last_frame.data[0])
+            avctx->release_buffer(avctx, &t->last_frame);
     }
 
     t->frame.reference = 1;
@@ -280,6 +289,7 @@
     if (!t->bitstream_buf)
         return AVERROR(ENOMEM);
     bswap16_buf(t->bitstream_buf, (const uint16_t*)buf, (buf_end-buf)/2);
+    memset((uint8_t*)t->bitstream_buf + (buf_end-buf), 0, FF_INPUT_BUFFER_PADDING_SIZE);
     init_get_bits(&s->gb, t->bitstream_buf, 8*(buf_end-buf));
 
     for (s->mb_y=0; s->mb_y < (avctx->height+15)/16; s->mb_y++)
diff --git a/libavcodec/eatgv.c b/libavcodec/eatgv.c
index 0855f10..fb88dce 100644
--- a/libavcodec/eatgv.c
+++ b/libavcodec/eatgv.c
@@ -74,7 +74,7 @@
     else
         src += 2;
 
-    if (src+3>src_end)
+    if (src_end - src < 3)
         return -1;
     size = AV_RB24(src);
     src += 3;
@@ -138,7 +138,7 @@
  * @return 0 on success, -1 on critical buffer underflow
  */
 static int tgv_decode_inter(TgvContext * s, const uint8_t *buf, const uint8_t *buf_end){
-    unsigned char *frame0_end = s->last_frame.data[0] + s->avctx->width*s->last_frame.linesize[0];
+    unsigned last_frame_size = s->avctx->height*s->last_frame.linesize[0];
     int num_mvs;
     int num_blocks_raw;
     int num_blocks_packed;
@@ -148,7 +148,7 @@
     int mvbits;
     const unsigned char *blocks_raw;
 
-    if(buf+12>buf_end)
+    if(buf_end - buf < 12)
         return -1;
 
     num_mvs           = AV_RL16(&buf[0]);
@@ -171,7 +171,7 @@
     /* read motion vectors */
     mvbits = (num_mvs*2*10+31) & ~31;
 
-    if (buf+(mvbits>>3)+16*num_blocks_raw+8*num_blocks_packed>buf_end)
+    if (buf_end - buf < (mvbits>>3)+16*num_blocks_raw+8*num_blocks_packed)
         return -1;
 
     init_get_bits(&gb, buf, mvbits);
@@ -207,12 +207,14 @@
         int src_stride;
 
         if (vector < num_mvs) {
-            src = s->last_frame.data[0] +
-                  (y*4 + s->mv_codebook[vector][1])*s->last_frame.linesize[0] +
-                   x*4 + s->mv_codebook[vector][0];
+            unsigned offset =
+                (y*4 + s->mv_codebook[vector][1])*s->last_frame.linesize[0] +
+                 x*4 + s->mv_codebook[vector][0];
+
             src_stride = s->last_frame.linesize[0];
-            if (src+3*src_stride+3>=frame0_end)
+            if (offset >= last_frame_size - (3*src_stride+3))
                 continue;
+            src = s->last_frame.data[0] + offset;
         }else{
             int offset = vector - num_mvs;
             if (offset<num_blocks_raw)
@@ -252,12 +254,15 @@
     const uint8_t *buf_end = buf + buf_size;
     int chunk_type;
 
+    if (buf_end - buf < EA_PREAMBLE_SIZE)
+        return AVERROR_INVALIDDATA;
+
     chunk_type = AV_RL32(&buf[0]);
     buf += EA_PREAMBLE_SIZE;
 
     if (chunk_type==kVGT_TAG) {
         int pal_count, i;
-        if(buf+12>buf_end) {
+        if(buf_end - buf < 12) {
             av_log(avctx, AV_LOG_WARNING, "truncated header\n");
             return -1;
         }
@@ -272,7 +277,7 @@
 
         pal_count = AV_RL16(&buf[6]);
         buf += 12;
-        for(i=0; i<pal_count && i<AVPALETTE_COUNT && buf+2<buf_end; i++) {
+        for(i=0; i<pal_count && i<AVPALETTE_COUNT && buf_end - buf >= 3; i++) {
             s->palette[i] = AV_RB24(buf);
             buf += 3;
         }
diff --git a/libavcodec/golomb.h b/libavcodec/golomb.h
index 90eeb30..8dff032 100644
--- a/libavcodec/golomb.h
+++ b/libavcodec/golomb.h
@@ -75,6 +75,20 @@
     }
 }
 
+/**
+ * Read an unsigned Exp-Golomb code in the range 0 to UINT32_MAX-1.
+ */
+static inline unsigned get_ue_golomb_long(GetBitContext *gb)
+{
+    unsigned buf, log;
+
+    buf = show_bits_long(gb, 32);
+    log = 31 - av_log2(buf);
+    skip_bits_long(gb, log);
+
+    return get_bits_long(gb, log + 1) - 1;
+}
+
  /**
  * read unsigned exp golomb code, constraint to a max of 31.
  * the return value is undefined if the stored value exceeds 31.
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 47ac9f0..ff38bd7 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -1019,8 +1019,12 @@
     s->height = s->avctx->height;
     s->codec_id= s->avctx->codec->id;
 
-    ff_h264dsp_init(&h->h264dsp, 8);
-    ff_h264_pred_init(&h->hpc, s->codec_id, 8);
+    s->avctx->bits_per_raw_sample = 8;
+
+    ff_h264dsp_init(&h->h264dsp,
+                    s->avctx->bits_per_raw_sample);
+    ff_h264_pred_init(&h->hpc, s->codec_id,
+                      s->avctx->bits_per_raw_sample);
 
     h->dequant_coeff_pps= -1;
     s->unrestricted_mv=1;
@@ -2633,6 +2637,7 @@
         free_tables(h, 0);
         flush_dpb(s->avctx);
         MPV_common_end(s);
+        h->list_count = 0;
     }
     if (!s->context_initialized) {
         if (h != h0) {
@@ -3753,9 +3758,13 @@
             switch (hx->nal_unit_type) {
                 case NAL_SPS:
                 case NAL_PPS:
+                    nals_needed = nal_index;
+                    break;
                 case NAL_IDR_SLICE:
                 case NAL_SLICE:
-                    nals_needed = nal_index;
+                    init_get_bits(&hx->s.gb, ptr, bit_length);
+                    if(!get_ue_golomb(&hx->s.gb))
+                        nals_needed = nal_index;
             }
             continue;
         }
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 0a380e0..a6f3973 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -227,7 +227,7 @@
     int transform_8x8_mode;     ///< transform_8x8_mode_flag
     uint8_t scaling_matrix4[6][16];
     uint8_t scaling_matrix8[6][64];
-    uint8_t chroma_qp_table[2][64];  ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
+    uint8_t chroma_qp_table[2][QP_MAX_NUM+1];  ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
     int chroma_qp_diff;
 }PPS;
 
diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c
index 34a4ff7..0b19353 100644
--- a/libavcodec/h264_direct.c
+++ b/libavcodec/h264_direct.c
@@ -89,7 +89,8 @@
             for(j=start; j<end; j++){
                 if(4*h->ref_list[0][j].frame_num + (h->ref_list[0][j].reference&3) == poc){
                     int cur_ref= mbafi ? (j-16)^field : j;
-                    map[list][2*old_ref + (rfield^field) + 16] = cur_ref;
+                    if(ref1->mbaff)
+                        map[list][2*old_ref + (rfield^field) + 16] = cur_ref;
                     if(rfield == field || !interl)
                         map[list][old_ref] = cur_ref;
                     break;
diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c
index 423f54b..89e2502 100644
--- a/libavcodec/h264_ps.c
+++ b/libavcodec/h264_ps.c
@@ -143,8 +143,8 @@
     get_bits(&s->gb, 4); /* bit_rate_scale */
     get_bits(&s->gb, 4); /* cpb_size_scale */
     for(i=0; i<cpb_count; i++){
-        get_ue_golomb(&s->gb); /* bit_rate_value_minus1 */
-        get_ue_golomb(&s->gb); /* cpb_size_value_minus1 */
+        get_ue_golomb_long(&s->gb); /* bit_rate_value_minus1 */
+        get_ue_golomb_long(&s->gb); /* cpb_size_value_minus1 */
         get_bits1(&s->gb);     /* cbr_flag */
     }
     sps->initial_cpb_removal_delay_length = get_bits(&s->gb, 5) + 1;
diff --git a/libavcodec/h264pred.c b/libavcodec/h264pred.c
index f6533cf9..4917e0d 100644
--- a/libavcodec/h264pred.c
+++ b/libavcodec/h264pred.c
@@ -40,7 +40,7 @@
 #undef BIT_DEPTH
 
 static void pred4x4_vertical_vp8_c(uint8_t *src, const uint8_t *topright, int stride){
-    const int lt= src[-1-1*stride];
+    const unsigned lt = src[-1-1*stride];
     LOAD_TOP_EDGE
     LOAD_TOP_RIGHT_EDGE
     uint32_t v = PACK_4U8((lt + 2*t0 + t1 + 2) >> 2,
@@ -55,7 +55,7 @@
 }
 
 static void pred4x4_horizontal_vp8_c(uint8_t *src, const uint8_t *topright, int stride){
-    const int lt= src[-1-1*stride];
+    const unsigned lt = src[-1-1*stride];
     LOAD_LEFT_EDGE
 
     AV_WN32A(src+0*stride, ((lt + 2*l0 + l1 + 2) >> 2)*0x01010101);
@@ -292,7 +292,7 @@
 
 static void pred8x8_left_dc_rv40_c(uint8_t *src, int stride){
     int i;
-    int dc0;
+    unsigned dc0;
 
     dc0=0;
     for(i=0;i<8; i++)
@@ -307,7 +307,7 @@
 
 static void pred8x8_top_dc_rv40_c(uint8_t *src, int stride){
     int i;
-    int dc0;
+    unsigned dc0;
 
     dc0=0;
     for(i=0;i<8; i++)
@@ -322,7 +322,7 @@
 
 static void pred8x8_dc_rv40_c(uint8_t *src, int stride){
     int i;
-    int dc0=0;
+    unsigned dc0 = 0;
 
     for(i=0;i<4; i++){
         dc0+= src[-1+i*stride] + src[i-stride];
diff --git a/libavcodec/h264pred_template.c b/libavcodec/h264pred_template.c
index 3cd4463..153aabc 100644
--- a/libavcodec/h264pred_template.c
+++ b/libavcodec/h264pred_template.c
@@ -120,28 +120,28 @@
 
 
 #define LOAD_TOP_RIGHT_EDGE\
-    const int av_unused t4= topright[0];\
-    const int av_unused t5= topright[1];\
-    const int av_unused t6= topright[2];\
-    const int av_unused t7= topright[3];\
+    const unsigned av_unused t4 = topright[0];\
+    const unsigned av_unused t5 = topright[1];\
+    const unsigned av_unused t6 = topright[2];\
+    const unsigned av_unused t7 = topright[3];\
 
 #define LOAD_DOWN_LEFT_EDGE\
-    const int av_unused l4= src[-1+4*stride];\
-    const int av_unused l5= src[-1+5*stride];\
-    const int av_unused l6= src[-1+6*stride];\
-    const int av_unused l7= src[-1+7*stride];\
+    const unsigned av_unused l4 = src[-1+4*stride];\
+    const unsigned av_unused l5 = src[-1+5*stride];\
+    const unsigned av_unused l6 = src[-1+6*stride];\
+    const unsigned av_unused l7 = src[-1+7*stride];\
 
 #define LOAD_LEFT_EDGE\
-    const int av_unused l0= src[-1+0*stride];\
-    const int av_unused l1= src[-1+1*stride];\
-    const int av_unused l2= src[-1+2*stride];\
-    const int av_unused l3= src[-1+3*stride];\
+    const unsigned av_unused l0 = src[-1+0*stride];\
+    const unsigned av_unused l1 = src[-1+1*stride];\
+    const unsigned av_unused l2 = src[-1+2*stride];\
+    const unsigned av_unused l3 = src[-1+3*stride];\
 
 #define LOAD_TOP_EDGE\
-    const int av_unused t0= src[ 0-1*stride];\
-    const int av_unused t1= src[ 1-1*stride];\
-    const int av_unused t2= src[ 2-1*stride];\
-    const int av_unused t3= src[ 3-1*stride];\
+    const unsigned av_unused t0 = src[ 0-1*stride];\
+    const unsigned av_unused t1 = src[ 1-1*stride];\
+    const unsigned av_unused t2 = src[ 2-1*stride];\
+    const unsigned av_unused t3 = src[ 3-1*stride];\
 
 static void FUNCC(pred4x4_down_right)(uint8_t *_src, const uint8_t *topright, int _stride){
     pixel *src = (pixel*)_src;
diff --git a/libavcodec/imc.c b/libavcodec/imc.c
index f08efe4..bc1a6a9 100644
--- a/libavcodec/imc.c
+++ b/libavcodec/imc.c
@@ -104,10 +104,15 @@
 
 static av_cold int imc_decode_init(AVCodecContext * avctx)
 {
-    int i, j;
+    int i, j, ret;
     IMCContext *q = avctx->priv_data;
     double r1, r2;
 
+    if (avctx->channels != 1) {
+        av_log_ask_for_sample(avctx, "Number of channels is not supported\n");
+        return AVERROR_PATCHWELCOME;
+    }
+
     q->decoder_reset = 1;
 
     for(i = 0; i < BANDS; i++)
@@ -156,7 +161,10 @@
     }
     q->one_div_log2 = 1/log(2);
 
-    ff_fft_init(&q->fft, 7, 1);
+    if ((ret = ff_fft_init(&q->fft, 7, 1))) {
+        av_log(avctx, AV_LOG_INFO, "FFT init failed\n");
+        return ret;
+    }
     dsputil_init(&q->dsp, avctx);
     avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
     avctx->channel_layout = (avctx->channels==2) ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;
diff --git a/libavcodec/imgconvert.c b/libavcodec/imgconvert.c
index 78ac2d8..beb3ee1 100644
--- a/libavcodec/imgconvert.c
+++ b/libavcodec/imgconvert.c
@@ -499,6 +499,16 @@
         }
     }
 
+    switch (pix_fmt) {
+    case PIX_FMT_RGB8:
+    case PIX_FMT_BGR8:
+    case PIX_FMT_RGB4_BYTE:
+    case PIX_FMT_BGR4_BYTE:
+    case PIX_FMT_GRAY8:
+        // do not include palette for these pseudo-paletted formats
+        return size;
+    }
+
     if (desc->flags & PIX_FMT_PAL)
         memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4);
 
diff --git a/libavcodec/libgsm.c b/libavcodec/libgsm.c
index 1f76f82..073cf44 100644
--- a/libavcodec/libgsm.c
+++ b/libavcodec/libgsm.c
@@ -141,18 +141,25 @@
                                AVPacket *avpkt) {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
+    int out_size = avctx->frame_size * av_get_bytes_per_sample(avctx->sample_fmt);
+
+    if (*data_size < out_size) {
+        av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
+        return AVERROR(EINVAL);
+    }
+
     *data_size = 0; /* In case of error */
     if(buf_size < avctx->block_align) return -1;
     switch(avctx->codec_id) {
     case CODEC_ID_GSM:
         if(gsm_decode(avctx->priv_data,buf,data)) return -1;
-        *data_size = GSM_FRAME_SIZE*sizeof(int16_t);
         break;
     case CODEC_ID_GSM_MS:
         if(gsm_decode(avctx->priv_data,buf,data) ||
            gsm_decode(avctx->priv_data,buf+33,((int16_t*)data)+GSM_FRAME_SIZE)) return -1;
-        *data_size = GSM_FRAME_SIZE*sizeof(int16_t)*2;
     }
+
+    *data_size = out_size;
     return avctx->block_align;
 }
 
diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index bf542ac..6477f3f 100644
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -101,13 +101,14 @@
 }
 
 static int X264_frame(AVCodecContext *ctx, uint8_t *buf,
-                      int bufsize, void *data)
+                      int orig_bufsize, void *data)
 {
     X264Context *x4 = ctx->priv_data;
     AVFrame *frame = data;
     x264_nal_t *nal;
     int nnal, i;
     x264_picture_t pic_out;
+    int bufsize;
 
     x264_picture_init( &x4->pic );
     x4->pic.img.i_csp   = X264_CSP_I420;
@@ -138,6 +139,7 @@
     }
 
     do {
+        bufsize = orig_bufsize;
     if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0)
         return -1;
 
diff --git a/libavcodec/mlpdec.c b/libavcodec/mlpdec.c
index b13d079..baae9a3 100644
--- a/libavcodec/mlpdec.c
+++ b/libavcodec/mlpdec.c
@@ -950,7 +950,12 @@
     int32_t *data_32 = (int32_t*) data;
     int16_t *data_16 = (int16_t*) data;
 
-    if (*data_size < (s->max_channel + 1) * s->blockpos * (is32 ? 4 : 2))
+    if (m->avctx->channels != s->max_matrix_channel + 1) {
+        av_log(m->avctx, AV_LOG_ERROR, "channel count mismatch\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    if (*data_size < m->avctx->channels * s->blockpos * (is32 ? 4 : 2))
         return -1;
 
     for (i = 0; i < s->blockpos; i++) {
diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c
index c12ebf4..02e804d 100644
--- a/libavcodec/motion_est.c
+++ b/libavcodec/motion_est.c
@@ -1040,7 +1040,7 @@
     /* intra / predictive decision */
     pix = c->src[0][0];
     sum = s->dsp.pix_sum(pix, s->linesize);
-    varc = s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500;
+    varc = s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)sum*sum)>>8) + 500;
 
     pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
     pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
@@ -1202,7 +1202,7 @@
         if((c->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
             intra_score= varc - 500;
         }else{
-            int mean= (sum+128)>>8;
+            unsigned mean = (sum+128)>>8;
             mean*= 0x01010101;
 
             for(i=0; i<16; i++){
diff --git a/libavcodec/mpc7.c b/libavcodec/mpc7.c
index bb21469..6477edc 100644
--- a/libavcodec/mpc7.c
+++ b/libavcodec/mpc7.c
@@ -197,12 +197,19 @@
     int i, ch;
     int mb = -1;
     Band *bands = c->bands;
-    int off;
+    int off, out_size;
     int bits_used, bits_avail;
 
     memset(bands, 0, sizeof(bands));
     if(buf_size <= 4){
         av_log(avctx, AV_LOG_ERROR, "Too small buffer passed (%i bytes)\n", buf_size);
+        return AVERROR(EINVAL);
+    }
+
+    out_size = (buf[1] ? c->lastframelen : MPC_FRAME_SIZE) * 4;
+    if (*data_size < out_size) {
+        av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
+        return AVERROR(EINVAL);
     }
 
     bits = av_malloc(((buf_size - 1) & ~3) + FF_INPUT_BUFFER_PADDING_SIZE);
@@ -277,7 +284,7 @@
         *data_size = 0;
         return buf_size;
     }
-    *data_size = (buf[1] ? c->lastframelen : MPC_FRAME_SIZE) * 4;
+    *data_size = out_size;
 
     return buf_size;
 }
diff --git a/libavcodec/mpc8.c b/libavcodec/mpc8.c
index bca5745..90bc8c8 100644
--- a/libavcodec/mpc8.c
+++ b/libavcodec/mpc8.c
@@ -243,10 +243,16 @@
     GetBitContext gb2, *gb = &gb2;
     int i, j, k, ch, cnt, res, t;
     Band *bands = c->bands;
-    int off;
+    int off, out_size;
     int maxband, keyframe;
     int last[2];
 
+    out_size = MPC_FRAME_SIZE * 2 * avctx->channels;
+    if (*data_size < out_size) {
+        av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
+        return AVERROR(EINVAL);
+    }
+
     keyframe = c->cur_frame == 0;
 
     if(keyframe){
@@ -404,7 +410,7 @@
     c->last_bits_used = get_bits_count(gb);
     if(c->cur_frame >= c->frames)
         c->cur_frame = 0;
-    *data_size =  MPC_FRAME_SIZE * 2 * avctx->channels;
+    *data_size =  out_size;
 
     return c->cur_frame ? c->last_bits_used >> 3 : buf_size;
 }
diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c
index 9fbae0c..32dfd23 100644
--- a/libavcodec/mpegaudiodec.c
+++ b/libavcodec/mpegaudiodec.c
@@ -1801,8 +1801,8 @@
         avctx->bit_rate = s->bit_rate;
     avctx->sub_id = s->layer;
 
-    if(*data_size < 1152*avctx->channels*sizeof(OUT_INT))
-        return -1;
+    if (*data_size < avctx->frame_size * avctx->channels * sizeof(OUT_INT))
+        return AVERROR(EINVAL);
     *data_size = 0;
 
     if(s->frame_size<=0 || s->frame_size > buf_size){
@@ -1870,6 +1870,9 @@
         avctx->bit_rate = s->bit_rate;
     avctx->sub_id = s->layer;
 
+    if (*data_size < avctx->frame_size * avctx->channels * sizeof(OUT_INT))
+        return AVERROR(EINVAL);
+
     s->frame_size = len;
 
     if (avctx->parse_only) {
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index f4743c5..d56ca82 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -2308,12 +2308,15 @@
 
         edge_h= FFMIN(h, s->v_edge_pos - y);
 
-        s->dsp.draw_edges(s->current_picture_ptr->data[0] +  y         *s->linesize  , s->linesize,
-                          s->h_edge_pos        , edge_h        , EDGE_WIDTH        , EDGE_WIDTH        , sides);
-        s->dsp.draw_edges(s->current_picture_ptr->data[1] + (y>>vshift)*s->uvlinesize, s->uvlinesize,
-                          s->h_edge_pos>>hshift, edge_h>>hshift, EDGE_WIDTH>>hshift, EDGE_WIDTH>>vshift, sides);
-        s->dsp.draw_edges(s->current_picture_ptr->data[2] + (y>>vshift)*s->uvlinesize, s->uvlinesize,
-                          s->h_edge_pos>>hshift, edge_h>>hshift, EDGE_WIDTH>>hshift, EDGE_WIDTH>>vshift, sides);
+        s->dsp.draw_edges(s->current_picture_ptr->data[0] +  y         *s->linesize,
+                          s->linesize,           s->h_edge_pos,         edge_h,
+                          EDGE_WIDTH,            EDGE_WIDTH,            sides);
+        s->dsp.draw_edges(s->current_picture_ptr->data[1] + (y>>vshift)*s->uvlinesize,
+                          s->uvlinesize,         s->h_edge_pos>>hshift, edge_h>>vshift,
+                          EDGE_WIDTH>>hshift,    EDGE_WIDTH>>vshift,    sides);
+        s->dsp.draw_edges(s->current_picture_ptr->data[2] + (y>>vshift)*s->uvlinesize,
+                          s->uvlinesize,         s->h_edge_pos>>hshift, edge_h>>vshift,
+                          EDGE_WIDTH>>hshift,    EDGE_WIDTH>>vshift,    sides);
     }
 
     h= FFMIN(h, s->avctx->height - y);
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 3c92aa93..b9e141d 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -2007,7 +2007,7 @@
             int varc;
             int sum = s->dsp.pix_sum(pix, s->linesize);
 
-            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
+            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)sum*sum)>>8) + 500 + 128)>>8;
 
             s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
             s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c
index 4c0d421..af0048a 100644
--- a/libavcodec/pthread.c
+++ b/libavcodec/pthread.c
@@ -332,6 +332,9 @@
         dst->height    = src->height;
         dst->pix_fmt   = src->pix_fmt;
 
+        dst->coded_width  = src->coded_width;
+        dst->coded_height = src->coded_height;
+
         dst->has_b_frames = src->has_b_frames;
         dst->idct_algo    = src->idct_algo;
         dst->slice_count  = src->slice_count;
diff --git a/libavcodec/put_bits.h b/libavcodec/put_bits.h
index 7901691..ccd2565 100644
--- a/libavcodec/put_bits.h
+++ b/libavcodec/put_bits.h
@@ -100,7 +100,8 @@
     align_put_bits(s);
 #else
 #ifndef BITSTREAM_WRITER_LE
-    s->bit_buf<<= s->bit_left;
+    if (s->bit_left < 32)
+        s->bit_buf<<= s->bit_left;
 #endif
     while (s->bit_left < 32) {
         /* XXX: should test end of buffer */
diff --git a/libavcodec/qcelpdec.c b/libavcodec/qcelpdec.c
index e83704d..61c812c 100644
--- a/libavcodec/qcelpdec.c
+++ b/libavcodec/qcelpdec.c
@@ -738,11 +738,17 @@
     int buf_size = avpkt->size;
     QCELPContext *q = avctx->priv_data;
     float *outbuffer = data;
-    int   i;
+    int   i, out_size;
     float quantized_lspf[10], lpc[10];
     float gain[16];
     float *formant_mem;
 
+    out_size = 160 * av_get_bytes_per_sample(avctx->sample_fmt);
+    if (*data_size < out_size) {
+        av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
+        return AVERROR(EINVAL);
+    }
+
     if((q->bitrate = determine_bitrate(avctx, buf_size, &buf)) == I_F_Q)
     {
         warn_insufficient_frame_quality(avctx, "bitrate cannot be determined.");
@@ -837,7 +843,7 @@
     memcpy(q->prev_lspf, quantized_lspf, sizeof(q->prev_lspf));
     q->prev_bitrate = q->bitrate;
 
-    *data_size = 160 * sizeof(*outbuffer);
+    *data_size = out_size;
 
     return buf_size;
 }
diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c
index 1665c8d..144ce98 100644
--- a/libavcodec/qdm2.c
+++ b/libavcodec/qdm2.c
@@ -1958,13 +1958,20 @@
     int buf_size = avpkt->size;
     QDM2Context *s = avctx->priv_data;
     int16_t *out = data;
-    int i;
+    int i, out_size;
 
     if(!buf)
         return 0;
     if(buf_size < s->checksum_size)
         return -1;
 
+    out_size = 16 * s->channels * s->frame_size *
+               av_get_bytes_per_sample(avctx->sample_fmt);
+    if (*data_size < out_size) {
+        av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
+        return AVERROR(EINVAL);
+    }
+
     av_log(avctx, AV_LOG_DEBUG, "decode(%d): %p[%d] -> %p[%d]\n",
        buf_size, buf, s->checksum_size, data, *data_size);
 
@@ -1974,7 +1981,7 @@
         out += s->channels * s->frame_size;
     }
 
-    *data_size = (uint8_t*)out - (uint8_t*)data;
+    *data_size = out_size;
 
     return s->checksum_size;
 }
diff --git a/libavcodec/qtrle.c b/libavcodec/qtrle.c
index a2b6c7f..8bcbbd3 100644
--- a/libavcodec/qtrle.c
+++ b/libavcodec/qtrle.c
@@ -126,6 +126,7 @@
     while (lines_to_change--) {
         CHECK_STREAM_PTR(2);
         pixel_ptr = row_ptr + (num_pixels * (s->buf[stream_ptr++] - 1));
+        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
 
         while ((rle_code = (signed char)s->buf[stream_ptr++]) != -1) {
             if (rle_code == 0) {
@@ -182,6 +183,7 @@
     while (lines_to_change--) {
         CHECK_STREAM_PTR(2);
         pixel_ptr = row_ptr + (4 * (s->buf[stream_ptr++] - 1));
+        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
 
         while ((rle_code = (signed char)s->buf[stream_ptr++]) != -1) {
             if (rle_code == 0) {
@@ -235,6 +237,7 @@
     while (lines_to_change--) {
         CHECK_STREAM_PTR(2);
         pixel_ptr = row_ptr + (s->buf[stream_ptr++] - 1) * 2;
+        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
 
         while ((rle_code = (signed char)s->buf[stream_ptr++]) != -1) {
             if (rle_code == 0) {
@@ -284,6 +287,7 @@
     while (lines_to_change--) {
         CHECK_STREAM_PTR(2);
         pixel_ptr = row_ptr + (s->buf[stream_ptr++] - 1) * 3;
+        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
 
         while ((rle_code = (signed char)s->buf[stream_ptr++]) != -1) {
             if (rle_code == 0) {
@@ -335,6 +339,7 @@
     while (lines_to_change--) {
         CHECK_STREAM_PTR(2);
         pixel_ptr = row_ptr + (s->buf[stream_ptr++] - 1) * 4;
+        CHECK_PIXEL_PTR(0);  /* make sure pixel_ptr is positive */
 
         while ((rle_code = (signed char)s->buf[stream_ptr++]) != -1) {
             if (rle_code == 0) {
@@ -463,6 +468,8 @@
         stream_ptr += 4;
         height = AV_RB16(&s->buf[stream_ptr]);
         stream_ptr += 4;
+        if (height > s->avctx->height - start_line)
+            goto done;
     } else {
         start_line = 0;
         height = s->avctx->height;
diff --git a/libavcodec/resample.c b/libavcodec/resample.c
index 62ece22..d53c731 100644
--- a/libavcodec/resample.c
+++ b/libavcodec/resample.c
@@ -337,9 +337,9 @@
     if (s->sample_fmt[1] != AV_SAMPLE_FMT_S16) {
         output_bak = output;
 
-        if (!s->buffer_size[1] || s->buffer_size[1] < lenout) {
+        if (!s->buffer_size[1] || s->buffer_size[1] < 2*lenout) {
             av_free(s->buffer[1]);
-            s->buffer_size[1] = lenout;
+            s->buffer_size[1] = 2*lenout;
             s->buffer[1] = av_malloc(s->buffer_size[1]);
             if (!s->buffer[1]) {
                 av_log(s->resample_context, AV_LOG_ERROR, "Could not allocate buffer\n");
diff --git a/libavcodec/resample2.c b/libavcodec/resample2.c
index b940059..5c42558 100644
--- a/libavcodec/resample2.c
+++ b/libavcodec/resample2.c
@@ -207,8 +207,10 @@
     memcpy(&c->filter_bank[c->filter_length*phase_count+1], c->filter_bank, (c->filter_length-1)*sizeof(FELEM));
     c->filter_bank[c->filter_length*phase_count]= c->filter_bank[c->filter_length - 1];
 
-    c->src_incr= out_rate;
-    c->ideal_dst_incr= c->dst_incr= in_rate * phase_count;
+    if(!av_reduce(&c->src_incr, &c->dst_incr, out_rate, in_rate * (int64_t)phase_count, INT32_MAX/2))
+        goto error;
+    c->ideal_dst_incr= c->dst_incr;
+
     c->index= -phase_count*((c->filter_length-1)/2);
 
     return c;
@@ -246,10 +248,9 @@
             dst[dst_index] = src[index2>>32];
             index2 += incr;
         }
-        frac += dst_index * dst_incr_frac;
         index += dst_index * dst_incr;
-        index += frac / c->src_incr;
-        frac %= c->src_incr;
+        index += (frac + dst_index * (int64_t)dst_incr_frac) / c->src_incr;
+        frac   = (frac + dst_index * (int64_t)dst_incr_frac) % c->src_incr;
   }else{
     for(dst_index=0; dst_index < dst_size; dst_index++){
         FELEM *filter= c->filter_bank + c->filter_length*(index & c->phase_mask);
diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c
index 4c1abe8..0b9d420 100644
--- a/libavcodec/shorten.c
+++ b/libavcodec/shorten.c
@@ -113,6 +113,7 @@
 {
     int i, chan;
     int *coeffs;
+    void *tmp_ptr;
 
     for (chan=0; chan<s->channels; chan++) {
         if(FFMAX(1, s->nmean) >= UINT_MAX/sizeof(int32_t)){
@@ -124,9 +125,15 @@
             return -1;
         }
 
-        s->offset[chan] = av_realloc(s->offset[chan], sizeof(int32_t)*FFMAX(1, s->nmean));
+        tmp_ptr = av_realloc(s->offset[chan], sizeof(int32_t)*FFMAX(1, s->nmean));
+        if (!tmp_ptr)
+            return AVERROR(ENOMEM);
+        s->offset[chan] = tmp_ptr;
 
-        s->decoded[chan] = av_realloc(s->decoded[chan], sizeof(int32_t)*(s->blocksize + s->nwrap));
+        tmp_ptr = av_realloc(s->decoded[chan], sizeof(int32_t)*(s->blocksize + s->nwrap));
+        if (!tmp_ptr)
+            return AVERROR(ENOMEM);
+        s->decoded[chan] = tmp_ptr;
         for (i=0; i<s->nwrap; i++)
             s->decoded[chan][i] = 0;
         s->decoded[chan] += s->nwrap;
@@ -284,8 +291,15 @@
     int i, input_buf_size = 0;
     int16_t *samples = data;
     if(s->max_framesize == 0){
+        void *tmp_ptr;
         s->max_framesize= 1024; // should hopefully be enough for the first header
-        s->bitstream= av_fast_realloc(s->bitstream, &s->allocated_bitstream_size, s->max_framesize);
+        tmp_ptr = av_fast_realloc(s->bitstream, &s->allocated_bitstream_size,
+                                  s->max_framesize);
+        if (!tmp_ptr) {
+            av_log(avctx, AV_LOG_ERROR, "error allocating bitstream buffer\n");
+            return AVERROR(ENOMEM);
+        }
+        s->bitstream = tmp_ptr;
     }
 
     if(1 && s->max_framesize){//FIXME truncated
@@ -467,6 +481,12 @@
 
                     s->cur_chan++;
                     if (s->cur_chan == s->channels) {
+                        int out_size = s->blocksize * s->channels *
+                                       av_get_bytes_per_sample(avctx->sample_fmt);
+                        if (*data_size < out_size) {
+                            av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n");
+                            return AVERROR(EINVAL);
+                        }
                         samples = interleave_buffer(samples, s->channels, s->blocksize, s->decoded);
                         s->cur_chan = 0;
                         goto frame_done;
diff --git a/libavcodec/sipr.c b/libavcodec/sipr.c
index 9befe8a..bd7d223 100644
--- a/libavcodec/sipr.c
+++ b/libavcodec/sipr.c
@@ -194,14 +194,16 @@
 {
     int i, j;
 
-    parms->ma_pred_switch           = get_bits(pgb, p->ma_predictor_bits);
+    if (p->ma_predictor_bits)
+        parms->ma_pred_switch       = get_bits(pgb, p->ma_predictor_bits);
 
     for (i = 0; i < 5; i++)
         parms->vq_indexes[i]        = get_bits(pgb, p->vq_indexes_bits[i]);
 
     for (i = 0; i < p->subframe_count; i++) {
         parms->pitch_delay[i]       = get_bits(pgb, p->pitch_delay_bits[i]);
-        parms->gp_index[i]          = get_bits(pgb, p->gp_index_bits);
+        if (p->gp_index_bits)
+            parms->gp_index[i]      = get_bits(pgb, p->gp_index_bits);
 
         for (j = 0; j < p->number_of_fc_indexes; j++)
             parms->fc_indexes[i][j] = get_bits(pgb, p->fc_index_bits[j]);
@@ -509,7 +511,7 @@
     GetBitContext gb;
     float *data = datap;
     int subframe_size = ctx->mode == MODE_16k ? L_SUBFR_16k : SUBFR_SIZE;
-    int i;
+    int i, out_size;
 
     ctx->avctx = avctx;
     if (avpkt->size < (mode_par->bits_per_frame >> 3)) {
@@ -520,7 +522,11 @@
         *data_size = 0;
         return -1;
     }
-    if (*data_size < subframe_size * mode_par->subframe_count * sizeof(float)) {
+
+    out_size = mode_par->frames_per_packet * subframe_size *
+               mode_par->subframe_count *
+               av_get_bytes_per_sample(avctx->sample_fmt);
+    if (*data_size < out_size) {
         av_log(avctx, AV_LOG_ERROR,
                "Error processing packet: output buffer (%d) too small\n",
                *data_size);
@@ -542,8 +548,7 @@
         data += subframe_size * mode_par->subframe_count;
     }
 
-    *data_size = mode_par->frames_per_packet * subframe_size *
-        mode_par->subframe_count * sizeof(float);
+    *data_size = out_size;
 
     return mode_par->bits_per_frame >> 3;
 }
diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c
index be4bc23..0b7a19a 100644
--- a/libavcodec/smacker.c
+++ b/libavcodec/smacker.c
@@ -560,6 +560,10 @@
 
 static av_cold int smka_decode_init(AVCodecContext *avctx)
 {
+    if (avctx->channels < 1 || avctx->channels > 2) {
+        av_log(avctx, AV_LOG_ERROR, "invalid number of channels\n");
+        return AVERROR(EINVAL);
+    }
     avctx->channel_layout = (avctx->channels==2) ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;
     avctx->sample_fmt = avctx->bits_per_coded_sample == 8 ? AV_SAMPLE_FMT_U8 : AV_SAMPLE_FMT_S16;
     return 0;
@@ -583,6 +587,11 @@
     int bits, stereo;
     int pred[2] = {0, 0};
 
+    if (buf_size <= 4) {
+        av_log(avctx, AV_LOG_ERROR, "packet is too small\n");
+        return AVERROR(EINVAL);
+    }
+
     unp_size = AV_RL32(buf);
 
     init_get_bits(&gb, buf + 4, (buf_size - 4) * 8);
@@ -598,6 +607,14 @@
         av_log(avctx, AV_LOG_ERROR, "Frame is too large to fit in buffer\n");
         return -1;
     }
+    if (stereo ^ (avctx->channels != 1)) {
+        av_log(avctx, AV_LOG_ERROR, "channels mismatch\n");
+        return AVERROR(EINVAL);
+    }
+    if (bits && avctx->sample_fmt == AV_SAMPLE_FMT_U8) {
+        av_log(avctx, AV_LOG_ERROR, "sample format mismatch\n");
+        return AVERROR(EINVAL);
+    }
 
     memset(vlc, 0, sizeof(VLC) * 4);
     memset(h, 0, sizeof(HuffContext) * 4);
diff --git a/libavcodec/snow.c b/libavcodec/snow.c
index 43a7190..86ab710 100644
--- a/libavcodec/snow.c
+++ b/libavcodec/snow.c
@@ -1917,8 +1917,6 @@
 static void halfpel_interpol(SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame){
     int p,x,y;
 
-    assert(!(s->avctx->flags & CODEC_FLAG_EMU_EDGE));
-
     for(p=0; p<3; p++){
         int is_chroma= !!p;
         int w= s->avctx->width  >>is_chroma;
@@ -1975,7 +1973,7 @@
    int w= s->avctx->width; //FIXME round up to x16 ?
    int h= s->avctx->height;
 
-    if(s->current_picture.data[0]){
+    if(s->current_picture.data[0] && !(s->avctx->flags&CODEC_FLAG_EMU_EDGE)){
         s->dsp.draw_edges(s->current_picture.data[0],
                           s->current_picture.linesize[0], w   , h   ,
                           EDGE_WIDTH  , EDGE_WIDTH  , EDGE_TOP | EDGE_BOTTOM);
diff --git a/libavcodec/truespeech.c b/libavcodec/truespeech.c
index d903a01..b5f7466 100644
--- a/libavcodec/truespeech.c
+++ b/libavcodec/truespeech.c
@@ -56,6 +56,11 @@
 {
 //    TSContext *c = avctx->priv_data;
 
+    if (avctx->channels != 1) {
+        av_log_ask_for_sample(avctx, "Unsupported channel count: %d\n", avctx->channels);
+        return AVERROR(EINVAL);
+    }
+
     avctx->sample_fmt = AV_SAMPLE_FMT_S16;
     return 0;
 }
diff --git a/libavcodec/twinvq.c b/libavcodec/twinvq.c
index f8e75bb..7be13bc 100644
--- a/libavcodec/twinvq.c
+++ b/libavcodec/twinvq.c
@@ -822,7 +822,7 @@
     const ModeTab *mtab = tctx->mtab;
     float *out = data;
     enum FrameType ftype;
-    int window_type;
+    int window_type, out_size;
     static const enum FrameType wtype_to_ftype_table[] = {
         FT_LONG,   FT_LONG, FT_SHORT, FT_LONG,
         FT_MEDIUM, FT_LONG, FT_LONG,  FT_MEDIUM, FT_MEDIUM
@@ -835,6 +835,13 @@
         return buf_size;
     }
 
+    out_size = mtab->size * avctx->channels *
+               av_get_bytes_per_sample(avctx->sample_fmt);
+    if (*data_size < out_size) {
+        av_log(avctx, AV_LOG_ERROR, "output buffer is too small\n");
+        return AVERROR(EINVAL);
+    }
+
     init_get_bits(&gb, buf, buf_size * 8);
     skip_bits(&gb, get_bits(&gb, 8));
     window_type = get_bits(&gb, WINDOW_TYPE_BITS);
@@ -857,7 +864,7 @@
         return buf_size;
     }
 
-    *data_size = mtab->size*avctx->channels*4;
+    *data_size = out_size;
 
     return buf_size;
 }
diff --git a/libavcodec/txd.c b/libavcodec/txd.c
index 0e25458..219c337 100644
--- a/libavcodec/txd.c
+++ b/libavcodec/txd.c
@@ -23,6 +23,7 @@
 
 #include "libavutil/intreadwrite.h"
 #include "libavutil/imgutils.h"
+#include "bytestream.h"
 #include "avcodec.h"
 #include "s3tc.h"
 
@@ -42,6 +43,7 @@
 static int txd_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
                             AVPacket *avpkt) {
     const uint8_t *buf = avpkt->data;
+    const uint8_t *buf_end = avpkt->data + avpkt->size;
     TXDContext * const s = avctx->priv_data;
     AVFrame *picture = data;
     AVFrame * const p = &s->picture;
@@ -52,6 +54,8 @@
     const uint32_t *palette = (const uint32_t *)(cur + 88);
     uint32_t *pal;
 
+    if (buf_end - cur < 92)
+        return AVERROR_INVALIDDATA;
     version         = AV_RL32(cur);
     d3d_format      = AV_RL32(cur+76);
     w               = AV_RL16(cur+80);
@@ -69,6 +73,8 @@
 
     if (depth == 8) {
         avctx->pix_fmt = PIX_FMT_PAL8;
+        if (buf_end - cur < 1024)
+            return AVERROR_INVALIDDATA;
         cur += 1024;
     } else if (depth == 16 || depth == 32)
         avctx->pix_fmt = PIX_FMT_RGB32;
@@ -100,6 +106,8 @@
             v = AV_RB32(palette+y);
             pal[y] = (v>>8) + (v<<24);
         }
+        if (buf_end - cur < w * h)
+            return AVERROR_INVALIDDATA;
         for (y=0; y<h; y++) {
             memcpy(ptr, cur, w);
             ptr += stride;
@@ -110,9 +118,13 @@
         case 0:
             if (!flags&1) goto unsupported;
         case FF_S3TC_DXT1:
+            if (buf_end - cur < (w/4) * (h/4) * 8)
+                return AVERROR_INVALIDDATA;
             ff_decode_dxt1(cur, ptr, w, h, stride);
             break;
         case FF_S3TC_DXT3:
+            if (buf_end - cur < (w/4) * (h/4) * 16)
+                return AVERROR_INVALIDDATA;
             ff_decode_dxt3(cur, ptr, w, h, stride);
             break;
         default:
@@ -122,6 +134,8 @@
         switch (d3d_format) {
         case 0x15:
         case 0x16:
+            if (buf_end - cur < h * w * 4)
+                return AVERROR_INVALIDDATA;
             for (y=0; y<h; y++) {
                 memcpy(ptr, cur, w*4);
                 ptr += stride;
@@ -133,8 +147,12 @@
         }
     }
 
-    for (; mipmap_count > 1; mipmap_count--)
-        cur += AV_RL32(cur) + 4;
+    for (; mipmap_count > 1 && buf_end - cur >= 4; mipmap_count--) {
+        uint32_t length = bytestream_get_le32(&cur);
+        if (buf_end - cur < length)
+            break;
+        cur += length;
+    }
 
     *picture   = s->picture;
     *data_size = sizeof(AVPicture);
diff --git a/libavcodec/vorbisdec.c b/libavcodec/vorbisdec.c
index 024c8fd..8f16d3a 100644
--- a/libavcodec/vorbisdec.c
+++ b/libavcodec/vorbisdec.c
@@ -1605,7 +1605,7 @@
     vorbis_context *vc = avccontext->priv_data ;
     GetBitContext *gb = &(vc->gb);
     const float *channel_ptrs[255];
-    int i, len;
+    int i, len, out_size;
 
     if (!buf_size)
         return 0;
@@ -1630,6 +1630,13 @@
     av_dlog(NULL, "parsed %d bytes %d bits, returned %d samples (*ch*bits) \n",
             get_bits_count(gb) / 8, get_bits_count(gb) % 8, len);
 
+    out_size = len * vc->audio_channels *
+               av_get_bytes_per_sample(avccontext->sample_fmt);
+    if (*data_size < out_size) {
+        av_log(avccontext, AV_LOG_ERROR, "output buffer is too small\n");
+        return AVERROR(EINVAL);
+    }
+
     if (vc->audio_channels > 8) {
         for (i = 0; i < vc->audio_channels; i++)
             channel_ptrs[i] = vc->channel_floors + i * len;
@@ -1645,8 +1652,7 @@
         vc->fmt_conv.float_to_int16_interleave(data, channel_ptrs, len,
                                                vc->audio_channels);
 
-    *data_size = len * vc->audio_channels *
-                 av_get_bytes_per_sample(avccontext->sample_fmt);
+    *data_size = out_size;
 
     return buf_size ;
 }
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index b9af998..549f494 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -45,6 +45,7 @@
 #define FRAGMENT_PIXELS 8
 
 static av_cold int vp3_decode_end(AVCodecContext *avctx);
+static void vp3_decode_flush(AVCodecContext *avctx);
 
 //FIXME split things out into their own arrays
 typedef struct Vp3Fragment {
@@ -890,7 +891,7 @@
             /* decode a VLC into a token */
             token = get_vlc2(gb, vlc_table, 11, 3);
             /* use the token to get a zero run, a coefficient, and an eob run */
-            if (token <= 6) {
+            if ((unsigned) token <= 6U) {
                 eob_run = eob_run_base[token];
                 if (eob_run_get_bits[token])
                     eob_run += get_bits(gb, eob_run_get_bits[token]);
@@ -908,7 +909,7 @@
                     coeff_i        += eob_run;
                     eob_run = 0;
                 }
-            } else {
+            } else if (token >= 0) {
                 bits_to_get = coeff_get_bits[token];
                 if (bits_to_get)
                     bits_to_get = get_bits(gb, bits_to_get);
@@ -942,6 +943,10 @@
                 for (i = coeff_index+1; i <= coeff_index+zero_run; i++)
                     s->num_coded_frags[plane][i]--;
                 coeff_i++;
+            } else {
+                av_log(s->avctx, AV_LOG_ERROR,
+                       "Invalid token %d\n", token);
+                return -1;
             }
     }
 
@@ -991,6 +996,8 @@
     /* unpack the Y plane DC coefficients */
     residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_y_table], 0,
         0, residual_eob_run);
+    if (residual_eob_run < 0)
+        return residual_eob_run;
 
     /* reverse prediction of the Y-plane DC coefficients */
     reverse_dc_prediction(s, 0, s->fragment_width[0], s->fragment_height[0]);
@@ -998,8 +1005,12 @@
     /* unpack the C plane DC coefficients */
     residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
         1, residual_eob_run);
+    if (residual_eob_run < 0)
+        return residual_eob_run;
     residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
         2, residual_eob_run);
+    if (residual_eob_run < 0)
+        return residual_eob_run;
 
     /* reverse prediction of the C-plane DC coefficients */
     if (!(s->avctx->flags & CODEC_FLAG_GRAY))
@@ -1036,11 +1047,17 @@
     for (i = 1; i <= 63; i++) {
             residual_eob_run = unpack_vlcs(s, gb, y_tables[i], i,
                 0, residual_eob_run);
+            if (residual_eob_run < 0)
+                return residual_eob_run;
 
             residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
                 1, residual_eob_run);
+            if (residual_eob_run < 0)
+                return residual_eob_run;
             residual_eob_run = unpack_vlcs(s, gb, c_tables[i], i,
                 2, residual_eob_run);
+            if (residual_eob_run < 0)
+                return residual_eob_run;
     }
 
     return 0;
@@ -1777,10 +1794,15 @@
     Vp3DecodeContext *s = dst->priv_data, *s1 = src->priv_data;
     int qps_changed = 0, i, err;
 
+#define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
+
     if (!s1->current_frame.data[0]
         ||s->width != s1->width
-        ||s->height!= s1->height)
+        ||s->height!= s1->height) {
+        if (s != s1)
+            copy_fields(s, s1, golden_frame, current_frame);
         return -1;
+    }
 
     if (s != s1) {
         // init tables if the first frame hasn't been decoded
@@ -1796,8 +1818,6 @@
             memcpy(s->motion_val[1], s1->motion_val[1], c_fragment_count * sizeof(*s->motion_val[1]));
         }
 
-#define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
-
         // copy previous frame data
         copy_fields(s, s1, golden_frame, dsp);
 
@@ -1987,9 +2007,6 @@
     Vp3DecodeContext *s = avctx->priv_data;
     int i;
 
-    if (avctx->is_copy && !s->current_frame.data[0])
-        return 0;
-
     av_free(s->superblock_coding);
     av_free(s->all_fragments);
     av_free(s->coded_fragment_list[0]);
@@ -2016,12 +2033,7 @@
     free_vlc(&s->motion_vector_vlc);
 
     /* release all frames */
-    if (s->golden_frame.data[0])
-        ff_thread_release_buffer(avctx, &s->golden_frame);
-    if (s->last_frame.data[0] && s->last_frame.type != FF_BUFFER_TYPE_COPY)
-        ff_thread_release_buffer(avctx, &s->last_frame);
-    /* no need to release the current_frame since it will always be pointing
-     * to the same frame as either the golden or last frame */
+    vp3_decode_flush(avctx);
 
     return 0;
 }
@@ -2341,6 +2353,23 @@
         ff_thread_release_buffer(avctx, &s->current_frame);
 }
 
+static int vp3_init_thread_copy(AVCodecContext *avctx)
+{
+    Vp3DecodeContext *s = avctx->priv_data;
+
+    s->superblock_coding      = NULL;
+    s->all_fragments          = NULL;
+    s->coded_fragment_list[0] = NULL;
+    s->dct_tokens_base        = NULL;
+    s->superblock_fragments   = NULL;
+    s->macroblock_coding      = NULL;
+    s->motion_val[0]          = NULL;
+    s->motion_val[1]          = NULL;
+    s->edge_emu_buffer        = NULL;
+
+    return 0;
+}
+
 AVCodec ff_theora_decoder = {
     "theora",
     AVMEDIA_TYPE_VIDEO,
@@ -2354,6 +2383,7 @@
     NULL,
     .flush = vp3_decode_flush,
     .long_name = NULL_IF_CONFIG_SMALL("Theora"),
+    .init_thread_copy      = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
     .update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
 };
 #endif
@@ -2371,5 +2401,6 @@
     NULL,
     .flush = vp3_decode_flush,
     .long_name = NULL_IF_CONFIG_SMALL("On2 VP3"),
+    .init_thread_copy      = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
     .update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context)
 };
diff --git a/libavcodec/vp6.c b/libavcodec/vp6.c
index 3721d52..c66d2e7 100644
--- a/libavcodec/vp6.c
+++ b/libavcodec/vp6.c
@@ -374,7 +374,7 @@
         if (b > 3) pt = 1;
         vlc_coeff = &s->dccv_vlc[pt];
 
-        for (coeff_idx=0; coeff_idx<64; ) {
+        for (coeff_idx = 0;;) {
             int run = 1;
             if (coeff_idx<2 && s->nb_null[coeff_idx][pt]) {
                 s->nb_null[coeff_idx][pt]--;
@@ -411,6 +411,8 @@
                 }
             }
             coeff_idx+=run;
+            if (coeff_idx >= 64)
+                break;
             cg = FFMIN(vp6_coeff_groups[coeff_idx], 3);
             vlc_coeff = &s->ract_vlc[pt][ct][cg];
         }
diff --git a/libavcodec/vp8.c b/libavcodec/vp8.c
index 3e93653..3217605 100644
--- a/libavcodec/vp8.c
+++ b/libavcodec/vp8.c
@@ -33,6 +33,19 @@
 #   include "arm/vp8.h"
 #endif
 
+static void free_buffers(VP8Context *s)
+{
+    av_freep(&s->macroblocks_base);
+    av_freep(&s->filter_strength);
+    av_freep(&s->intra4x4_pred_mode_top);
+    av_freep(&s->top_nnz);
+    av_freep(&s->edge_emu_buffer);
+    av_freep(&s->top_border);
+    av_freep(&s->segmentation_map);
+
+    s->macroblocks = NULL;
+}
+
 static void vp8_decode_flush(AVCodecContext *avctx)
 {
     VP8Context *s = avctx->priv_data;
@@ -45,15 +58,7 @@
     }
     memset(s->framep, 0, sizeof(s->framep));
 
-    av_freep(&s->macroblocks_base);
-    av_freep(&s->filter_strength);
-    av_freep(&s->intra4x4_pred_mode_top);
-    av_freep(&s->top_nnz);
-    av_freep(&s->edge_emu_buffer);
-    av_freep(&s->top_border);
-    av_freep(&s->segmentation_map);
-
-    s->macroblocks        = NULL;
+    free_buffers(s);
 }
 
 static int update_dimensions(VP8Context *s, int width, int height)
@@ -273,7 +278,7 @@
 
     if (!s->macroblocks_base || /* first frame */
         width != s->avctx->width || height != s->avctx->height) {
-        if ((ret = update_dimensions(s, width, height) < 0))
+        if ((ret = update_dimensions(s, width, height)) < 0)
             return ret;
     }
 
@@ -487,6 +492,7 @@
 
     AV_ZERO32(&near_mv[0]);
     AV_ZERO32(&near_mv[1]);
+    AV_ZERO32(&near_mv[2]);
 
     /* Process MB on top, left and top-left */
     #define MV_EDGE_CHECK(n)\
@@ -919,7 +925,8 @@
                    int mb_x, int mb_y)
 {
     AVCodecContext *avctx = s->avctx;
-    int x, y, mode, nnz, tr;
+    int x, y, mode, nnz;
+    uint32_t tr;
 
     // for the first row, we need to run xchg_mb_border to init the top edge to 127
     // otherwise, skip it if we aren't going to deblock
@@ -948,7 +955,7 @@
         // from the top macroblock
         if (!(!mb_y && avctx->flags & CODEC_FLAG_EMU_EDGE) &&
             mb_x == s->mb_width-1) {
-            tr = tr_right[-1]*0x01010101;
+            tr = tr_right[-1]*0x01010101u;
             tr_right = (uint8_t *)&tr;
         }
 
@@ -1749,6 +1756,11 @@
 {
     VP8Context *s = dst->priv_data, *s_src = src->priv_data;
 
+    if (s->macroblocks_base &&
+        (s_src->mb_width != s->mb_width || s_src->mb_height != s->mb_height)) {
+        free_buffers(s);
+    }
+
     s->prob[0] = s_src->prob[!s_src->update_probabilities];
     s->segmentation = s_src->segmentation;
     s->lf_delta = s_src->lf_delta;
diff --git a/libavcodec/vqavideo.c b/libavcodec/vqavideo.c
index ca4fd94..64a68e1 100644
--- a/libavcodec/vqavideo.c
+++ b/libavcodec/vqavideo.c
@@ -138,6 +138,10 @@
     /* load up the VQA parameters from the header */
     vqa_header = (unsigned char *)s->avctx->extradata;
     s->vqa_version = vqa_header[0];
+    if (s->vqa_version < 1 || s->vqa_version > 3) {
+        av_log(s->avctx, AV_LOG_ERROR, "  VQA video: unsupported version %d\n", s->vqa_version);
+        return -1;
+    }
     s->width = AV_RL16(&vqa_header[6]);
     s->height = AV_RL16(&vqa_header[8]);
     if(av_image_check_size(s->width, s->height, 0, avctx)){
@@ -226,6 +230,8 @@
             src_index += 2;
             av_dlog(NULL, "(1) copy %X bytes from absolute pos %X\n", count, src_pos);
             CHECK_COUNT();
+            if (src_pos + count > dest_size)
+                return;
             for (i = 0; i < count; i++)
                 dest[dest_index + i] = dest[src_pos + i];
             dest_index += count;
@@ -248,6 +254,8 @@
             src_index += 2;
             av_dlog(NULL, "(3) copy %X bytes from absolute pos %X\n", count, src_pos);
             CHECK_COUNT();
+            if (src_pos + count > dest_size)
+                return;
             for (i = 0; i < count; i++)
                 dest[dest_index + i] = dest[src_pos + i];
             dest_index += count;
@@ -268,6 +276,8 @@
             src_index += 2;
             av_dlog(NULL, "(5) copy %X bytes from relpos %X\n", count, src_pos);
             CHECK_COUNT();
+            if (dest_index < src_pos)
+                return;
             for (i = 0; i < count; i++)
                 dest[dest_index + i] = dest[dest_index - src_pos + i];
             dest_index += count;
diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c
index c343080..2227352 100644
--- a/libavcodec/wmavoice.c
+++ b/libavcodec/wmavoice.c
@@ -1085,7 +1085,7 @@
             int excl_range         = s->aw_pulse_range; // always 16 or 24
             uint16_t *use_mask_ptr = &use_mask[idx >> 4];
             int first_sh           = 16 - (idx & 15);
-            *use_mask_ptr++       &= 0xFFFF << first_sh;
+            *use_mask_ptr++       &= 0xFFFFu << first_sh;
             excl_range            -= first_sh;
             if (excl_range >= 16) {
                 *use_mask_ptr++    = 0;
diff --git a/libavcodec/xxan.c b/libavcodec/xxan.c
index 10ec53f..c93ff43 100644
--- a/libavcodec/xxan.c
+++ b/libavcodec/xxan.c
@@ -129,7 +129,9 @@
                 if (size + size2 > dest_end - dest)
                     break;
             }
-            if (src + size > src_end || dest + size + size2 > dest_end)
+            if (src + size > src_end ||
+                dest + size + size2 > dest_end ||
+                dest + size - orig_dest < back )
                 return -1;
             bytestream_get_buffer(&src, dest, size);
             dest += size;
@@ -194,6 +196,8 @@
     if (mode) {
         for (j = 0; j < avctx->height >> 1; j++) {
             for (i = 0; i < avctx->width >> 1; i++) {
+                if (src_end - src < 1)
+                    return 0;
                 val = *src++;
                 if (val) {
                     val  = AV_RL16(table + (val << 1));
@@ -202,8 +206,6 @@
                     U[i] = uval | (uval >> 5);
                     V[i] = vval | (vval >> 5);
                 }
-                if (src == src_end)
-                    return 0;
             }
             U += s->pic.linesize[1];
             V += s->pic.linesize[2];
@@ -214,6 +216,8 @@
 
         for (j = 0; j < avctx->height >> 2; j++) {
             for (i = 0; i < avctx->width >> 1; i += 2) {
+                if (src_end - src < 1)
+                    return 0;
                 val = *src++;
                 if (val) {
                     val  = AV_RL16(table + (val << 1));
@@ -302,6 +306,9 @@
                               corr_end - corr_off);
         if (dec_size < 0)
             dec_size = 0;
+        else
+            dec_size = FFMIN(dec_size, s->buffer_size/2 - 1);
+
         for (i = 0; i < dec_size; i++)
             s->y_buffer[i*2+1] = (s->y_buffer[i*2+1] + (s->scratch_buffer[i] << 1)) & 0x3F;
     }
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 7ee0027..0fb04c4 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -809,6 +809,10 @@
     DO_2BITS(asf->packet_property >> 2, asf->packet_frag_offset, 0);
     DO_2BITS(asf->packet_property, asf->packet_replic_size, 0);
 //printf("key:%d stream:%d seq:%d offset:%d replic_size:%d\n", asf->packet_key_frame, asf->stream_index, asf->packet_seq, //asf->packet_frag_offset, asf->packet_replic_size);
+    if (rsize+asf->packet_replic_size > asf->packet_size_left) {
+        av_log(s, AV_LOG_ERROR, "packet_replic_size %d is invalid\n", asf->packet_replic_size);
+        return -1;
+    }
     if (asf->packet_replic_size >= 8) {
         asf->packet_obj_size = avio_rl32(pb);
         if(asf->packet_obj_size >= (1<<24) || asf->packet_obj_size <= 0){
@@ -843,10 +847,6 @@
         av_log(s, AV_LOG_ERROR, "unexpected packet_replic_size of %d\n", asf->packet_replic_size);
         return -1;
     }
-    if (rsize > asf->packet_size_left) {
-        av_log(s, AV_LOG_ERROR, "packet_replic_size is invalid\n");
-        return -1;
-    }
     if (asf->packet_flags & 0x01) {
         DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal
         if (rsize > asf->packet_size_left) {
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 0d13a9f..626261a 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -780,13 +780,14 @@
 {
     int i;
 
+    if (buflen <= 0)
+        return AVERROR(EINVAL);
     // reserve 1 byte for terminating 0
     buflen = FFMIN(buflen - 1, maxlen);
     for (i = 0; i < buflen; i++)
         if (!(buf[i] = avio_r8(s)))
             return i + 1;
-    if (buflen)
-        buf[i] = 0;
+    buf[i] = 0;
     for (; i < maxlen; i++)
         if (!avio_r8(s))
             return i + 1;
@@ -798,6 +799,8 @@
 {\
     char* q = buf;\
     int ret = 0;\
+    if (buflen <= 0) \
+        return AVERROR(EINVAL); \
     while (ret + 1 < maxlen) {\
         uint8_t tmp;\
         uint32_t ch;\
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 14b1c1f..ffc1898 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1811,7 +1811,7 @@
                         lace_size[n] = lace_size[n - 1] + snum;
                         total += lace_size[n];
                     }
-                    lace_size[n] = size - total;
+                    lace_size[laces - 1] = size - total;
                     break;
                 }
             }
diff --git a/libavformat/mov.c b/libavformat/mov.c
index b083a49..8fd9b32 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -2403,14 +2403,21 @@
         // The samples could theoretically be in any encoding if there's an encd
         // atom following, but in practice are only utf-8 or utf-16, distinguished
         // instead by the presence of a BOM
-        ch = avio_rb16(sc->pb);
-        if (ch == 0xfeff)
-            avio_get_str16be(sc->pb, len, title, title_len);
-        else if (ch == 0xfffe)
-            avio_get_str16le(sc->pb, len, title, title_len);
-        else {
-            AV_WB16(title, ch);
-            get_strz(sc->pb, title + 2, len - 1);
+        if (!len) {
+            title[0] = 0;
+        } else {
+            ch = avio_rb16(sc->pb);
+            if (ch == 0xfeff)
+                avio_get_str16be(sc->pb, len, title, title_len);
+            else if (ch == 0xfffe)
+                avio_get_str16le(sc->pb, len, title, title_len);
+            else {
+                AV_WB16(title, ch);
+                if (len == 1 || len == 2)
+                    title[len] = 0;
+                else
+                    get_strz(sc->pb, title + 2, len - 1);
+            }
         }
 
         ff_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
diff --git a/libavformat/mp3enc.c b/libavformat/mp3enc.c
index 50342bb..76d1813 100644
--- a/libavformat/mp3enc.c
+++ b/libavformat/mp3enc.c
@@ -51,11 +51,12 @@
     buf[0] = 'T';
     buf[1] = 'A';
     buf[2] = 'G';
-    count += id3v1_set_string(s, "TIT2",    buf +  3, 30);       //title
-    count += id3v1_set_string(s, "TPE1",    buf + 33, 30);       //author|artist
-    count += id3v1_set_string(s, "TALB",    buf + 63, 30);       //album
-    count += id3v1_set_string(s, "TDRL",    buf + 93,  4);       //date
-    count += id3v1_set_string(s, "comment", buf + 97, 30);
+    /* we knowingly overspecify each tag length by one byte to compensate for the mandatory null byte added by av_strlcpy */
+    count += id3v1_set_string(s, "TIT2",    buf +  3, 30 + 1);       //title
+    count += id3v1_set_string(s, "TPE1",    buf + 33, 30 + 1);       //author|artist
+    count += id3v1_set_string(s, "TALB",    buf + 63, 30 + 1);       //album
+    count += id3v1_set_string(s, "TDRL",    buf + 93,  4 + 1);       //date
+    count += id3v1_set_string(s, "comment", buf + 97, 30 + 1);
     if ((tag = av_dict_get(s->metadata, "TRCK", NULL, 0))) { //track
         buf[125] = 0;
         buf[126] = atoi(tag->value);
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index d3c9e78..e5c21cc 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1088,7 +1088,7 @@
 
     // stop parsing after pmt, we found header
     if (!ts->stream->nb_streams)
-        ts->stop_parse = 1;
+        ts->stop_parse = 2;
 
     for(;;) {
         st = 0;
@@ -1408,11 +1408,15 @@
     ts->stop_parse = 0;
     packet_num = 0;
     for(;;) {
-        if (ts->stop_parse>0)
-            break;
         packet_num++;
-        if (nb_packets != 0 && packet_num >= nb_packets)
+        if (nb_packets != 0 && packet_num >= nb_packets ||
+            ts->stop_parse > 1) {
+            ret = AVERROR(EAGAIN);
             break;
+        }
+        if (ts->stop_parse > 0)
+            break;
+
         ret = read_packet(s, packet, ts->raw_packet_size);
         if (ret != 0)
             return ret;
@@ -1863,10 +1867,8 @@
 
     len1 = len;
     ts->pkt = pkt;
-    ts->stop_parse = 0;
     for(;;) {
-        if (ts->stop_parse>0)
-            break;
+        ts->stop_parse = 0;
         if (len < TS_PACKET_SIZE)
             return -1;
         if (buf[0] != 0x47) {
@@ -1876,6 +1878,8 @@
             handle_packet(ts, buf);
             buf += TS_PACKET_SIZE;
             len -= TS_PACKET_SIZE;
+            if (ts->stop_parse == 1)
+                break;
         }
     }
     return len1 - len;
diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index 7e96472..32dedfb 100644
--- a/libavformat/mpegtsenc.c
+++ b/libavformat/mpegtsenc.c
@@ -84,7 +84,7 @@
     { "mpegts_service_id", "Set service_id field.",
       offsetof(MpegTSWrite, service_id), FF_OPT_TYPE_INT, {.dbl = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
     { "mpegts_pmt_start_pid", "Set the first pid of the PMT.",
-      offsetof(MpegTSWrite, pmt_start_pid), FF_OPT_TYPE_INT, {.dbl = 0x1000 }, 0x1000, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM},
+      offsetof(MpegTSWrite, pmt_start_pid), FF_OPT_TYPE_INT, {.dbl = 0x1000 }, 0x0010, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM},
     { "mpegts_start_pid", "Set the first pid.",
       offsetof(MpegTSWrite, start_pid), FF_OPT_TYPE_INT, {.dbl = 0x0100 }, 0x0100, 0x0f00, AV_OPT_FLAG_ENCODING_PARAM},
     { NULL },
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index a69944d..953d3b0 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -223,12 +223,13 @@
 
     if (length > 61444) /* worst case PAL 1920 samples 8 channels */
         return -1;
-    av_new_packet(pkt, length);
-    avio_read(pb, pkt->data, length);
+    length = av_get_packet(pb, pkt, length);
+    if (length < 0)
+        return length;
     data_ptr = pkt->data;
     end_ptr = pkt->data + length;
     buf_ptr = pkt->data + 4; /* skip SMPTE 331M header */
-    for (; buf_ptr < end_ptr; ) {
+    for (; buf_ptr + st->codec->channels*4 < end_ptr; ) {
         for (i = 0; i < st->codec->channels; i++) {
             uint32_t sample = bytestream_get_le32(&buf_ptr);
             if (st->codec->bits_per_coded_sample == 24)
@@ -238,7 +239,7 @@
         }
         buf_ptr += 32 - st->codec->channels*4; // always 8 channels stored SMPTE 331M
     }
-    pkt->size = data_ptr - pkt->data;
+    av_shrink_packet(pkt, data_ptr - pkt->data);
     return 0;
 }
 
@@ -290,12 +291,16 @@
     if (memcmp(tmpbuf, checkv, 16))
         av_log(s, AV_LOG_ERROR, "probably incorrect decryption key\n");
     size -= 32;
-    av_get_packet(pb, pkt, size);
+    size = av_get_packet(pb, pkt, size);
+    if (size < 0)
+        return size;
+    else if (size < plaintext_size)
+        return AVERROR_INVALIDDATA;
     size -= plaintext_size;
     if (mxf->aesc)
         av_aes_crypt(mxf->aesc, &pkt->data[plaintext_size],
                      &pkt->data[plaintext_size], size >> 4, ivec, 1);
-    pkt->size = orig_size;
+    av_shrink_packet(pkt, orig_size);
     pkt->stream_index = index;
     avio_skip(pb, end - avio_tell(pb));
     return 0;
@@ -332,8 +337,11 @@
                     av_log(s, AV_LOG_ERROR, "error reading D-10 aes3 frame\n");
                     return -1;
                 }
-            } else
-                av_get_packet(s->pb, pkt, klv.length);
+            } else {
+                int ret = av_get_packet(s->pb, pkt, klv.length);
+                if (ret < 0)
+                    return ret;
+            }
             pkt->stream_index = index;
             pkt->pos = klv.offset;
             return 0;
diff --git a/libavformat/riff.c b/libavformat/riff.c
index 1ccd909..a834084 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -287,6 +287,7 @@
     { CODEC_ID_ADPCM_YAMAHA,    0x0020 },
     { CODEC_ID_TRUESPEECH,      0x0022 },
     { CODEC_ID_GSM_MS,          0x0031 },
+    { CODEC_ID_AMR_NB,          0x0038 },  /* rogue format number */
     { CODEC_ID_ADPCM_G726,      0x0045 },
     { CODEC_ID_MP2,             0x0050 },
     { CODEC_ID_MP3,             0x0055 },
diff --git a/libavformat/rtpdec.c b/libavformat/rtpdec.c
index 9fc30d7..130a78d 100644
--- a/libavformat/rtpdec.c
+++ b/libavformat/rtpdec.c
@@ -111,14 +111,15 @@
 static int rtcp_parse_packet(RTPDemuxContext *s, const unsigned char *buf, int len)
 {
     int payload_len;
-    while (len >= 2) {
+    while (len >= 4) {
+        payload_len = FFMIN(len, (AV_RB16(buf + 2) + 1) * 4);
+
         switch (buf[1]) {
         case RTCP_SR:
-            if (len < 16) {
+            if (payload_len < 20) {
                 av_log(NULL, AV_LOG_ERROR, "Invalid length for RTCP SR packet\n");
                 return AVERROR_INVALIDDATA;
             }
-            payload_len = (AV_RB16(buf + 2) + 1) * 4;
 
             s->last_rtcp_ntp_time = AV_RB64(buf + 8);
             s->last_rtcp_timestamp = AV_RB32(buf + 16);
@@ -129,14 +130,13 @@
                 s->rtcp_ts_offset = s->last_rtcp_timestamp - s->base_timestamp;
             }
 
-            buf += payload_len;
-            len -= payload_len;
             break;
         case RTCP_BYE:
             return -RTCP_BYE;
-        default:
-            return -1;
         }
+
+        buf += payload_len;
+        len -= payload_len;
     }
     return -1;
 }
diff --git a/libavformat/tta.c b/libavformat/tta.c
index c37039d..9df9763 100644
--- a/libavformat/tta.c
+++ b/libavformat/tta.c
@@ -107,6 +107,10 @@
         return -1;
     }
     st->codec->extradata = av_mallocz(st->codec->extradata_size+FF_INPUT_BUFFER_PADDING_SIZE);
+    if (!st->codec->extradata) {
+        st->codec->extradata_size = 0;
+        return AVERROR(ENOMEM);
+    }
     avio_seek(s->pb, start_offset, SEEK_SET);
     avio_read(s->pb, st->codec->extradata, st->codec->extradata_size);
 
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 591a121..96ceae9 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2465,9 +2465,9 @@
         }
         {
             int64_t last = st->info->last_dts;
-            int64_t duration= pkt->dts - last;
 
-            if(pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && duration>0){
+            if(pkt->dts != AV_NOPTS_VALUE && last != AV_NOPTS_VALUE && pkt->dts > last){
+                int64_t duration= pkt->dts - last;
                 double dur= duration * av_q2d(st->time_base);
 
 //                if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
diff --git a/libavformat/westwood.c b/libavformat/westwood.c
index 818fe2d..dd6ddef 100644
--- a/libavformat/westwood.c
+++ b/libavformat/westwood.c
@@ -277,10 +277,8 @@
     /* there are 0 or more chunks before the FINF chunk; iterate until
      * FINF has been skipped and the file will be ready to be demuxed */
     do {
-        if (avio_read(pb, scratch, VQA_PREAMBLE_SIZE) != VQA_PREAMBLE_SIZE) {
-            av_free(st->codec->extradata);
+        if (avio_read(pb, scratch, VQA_PREAMBLE_SIZE) != VQA_PREAMBLE_SIZE)
             return AVERROR(EIO);
-        }
         chunk_tag = AV_RB32(&scratch[0]);
         chunk_size = AV_RB32(&scratch[4]);
 
diff --git a/libavutil/arm/intmath.h b/libavutil/arm/intmath.h
index 4130177..1e9d3e8 100644
--- a/libavutil/arm/intmath.h
+++ b/libavutil/arm/intmath.h
@@ -104,7 +104,7 @@
              "mvnne  %1, #1<<31             \n\t"
              "moveq  %0, %Q2                \n\t"
              "eorne  %0, %1,  %R2, asr #31  \n\t"
-             : "=r"(x), "=&r"(y) : "r"(a));
+             : "=r"(x), "=&r"(y) : "r"(a):"cc");
     return x;
 }
 
diff --git a/libavutil/crc.c b/libavutil/crc.c
index c3d74a2..d0e736e 100644
--- a/libavutil/crc.c
+++ b/libavutil/crc.c
@@ -57,7 +57,7 @@
  * @return <0 on failure
  */
 int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size){
-    int i, j;
+    unsigned i, j;
     uint32_t c;
 
     if (bits < 8 || bits > 32 || poly >= (1LL<<bits))
diff --git a/libavutil/mem.c b/libavutil/mem.c
index 9c2e120..9916234 100644
--- a/libavutil/mem.c
+++ b/libavutil/mem.c
@@ -137,7 +137,9 @@
     //FIXME this isn't aligned correctly, though it probably isn't needed
     if(!ptr) return av_malloc(size);
     diff= ((char*)ptr)[-1];
-    return (char*)realloc((char*)ptr - diff, size + diff) + diff;
+    ptr= realloc((char*)ptr - diff, size + diff);
+    if(ptr) ptr = (char*)ptr + diff;
+    return ptr;
 #else
     return realloc(ptr, size + !size);
 #endif